What are the best batteries for solar? In most cases, lithium ion batteries are the best option for a solar panel system. Mobile power systems are only as good as the batteries that hold the power.

RV Solar 101: Batteries

AGM batteries offer many advantages to the RVer. They are sealed, do not spill or vent gas, and require no maintenance. AGM batteries also charge quickly and are more resistant to low temperatures. They are, however, sensitive to overcharging and require the use of a charge controller as a preventative measure.

Gel batteries are also sealed and don’t spill, but they are much slower to charge than their AGM counterparts. Based on older technology, they also require a charge controller compatible with Gel batteries.

Lithium batteries. The third option not mentioned above is lithium batteries. They provide high performance and efficient charging in a low-weight package. They are safe, require no maintenance, and offer a long life-cycle. The drawback to lithium batteries is cost—these batteries come with a high price tag.

12 Volt Sun Cycle AGM Solar Battery

GP-AGM-100-12V

12 Volt Sun Cycle AGM battery designed for solar and inverter use. Specifically designed for solar, the AGM deep-cycle batteries offer maintenance free, sealed construction and integrated carrying handles. Ideal for upgrading lead-acid battery banks.

6 Volt Sun Cycle AGM Solar Battery

GP-AGM-224-6V

The 6 Volt Sun Cycle AGM battery is designed for solar and inverter use. Specifically designed for solar, the AGM deep-cycle batteries offer maintenance free, sealed construction and integrated carrying handles. Ideal for upgrading lead-acid battery banks.

Replace a single 12-volt lead-acid battery with two 6-volts (wired in series) to expand your off-grid power.

100Ah Lithium Iron Phosphate Solar Battery

GP-LIFEPO4-100

Go further off-the-grid with the new Go Power! 100ah Lithium Iron Phosphate solar battery. Built specifically for mobile applications, this deep cycle battery is ideal for life on the road.

Lithium technology offers a lightweight, safe alternative to traditional batteries, giving almost double the usable capacity of Lead Acid. The GP-LIFEPO4-100 provides 100 amp-hours of DC power. Use on its own or connect up to four together to build a powerful battery bank.

250Ah Lithium Iron Phosphate Solar Battery

GP-LIFEPO4-250

Efficient, high-powered performance. 250Ah Lithium Iron Phosphate Solar Battery.  Built for solar.

Buying battery tips

  • For most off-grid applications, high-quality AGM batteries are preferred since they strike the best balance between performance and price.
  • Lead-acid batteries cost less up front. They also need to be maintained to keep them running at peak performance, and have a shorter lifespan.
  • Lithium batteries are more expensive up front. However, they are higher efficiency, maintenance-free, and have a longer lifespan.
  • Be sure to check out the manufacturer’s battery warranty and ask about their service and support capabilities.